# I Ching MCP Server by RoxyAPI

> I Ching hexagram casts, 64 hexagram meanings and changing lines for AI agents.

- name: com.roxyapi/iching
- version: 1.0.1
- connection class: R1 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 89/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.roxyapi%2Fiching
- tools: https://api.protogrid.dev/v1/servers/com.roxyapi%2Fiching/tools

**An agent can connect on its own if it already holds `X_API_KEY`, `X_API_KEY`.** Remote endpoint behind a static API key or header. The registry never sees the value; the agent fills the placeholder.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "iching": {
      "type": "http",
      "url": "https://roxyapi.com/mcp/iching",
      "headers": {
        "X-API-Key": "${X_API_KEY}",
        "Authorization": "${X_API_KEY}"
      }
    }
  }
}
```

Placeholders to fill: `${X_API_KEY}`, `${X_API_KEY}`.

## Trust

- hygiene: 80
- liveness: 97
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-94% +updated-24d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (good)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 9 of 9 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_iching_hexagrams_lookup (idempotentHint, openWorldHint); post_iching_daily (idempotentHint, openWorldHint); post_iching_daily_cast (idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 3,015 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 9, about 3,015 tokens to load them all
- tool set hash: b7fd8c3e39ca1c61477c8078bb2bcf40
- badge: [![protogrid quality](https://protogrid.dev/badge/com.roxyapi/iching.svg)](https://protogrid.dev/servers/com.roxyapi/iching)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://roxyapi.com/mcp/iching (streamable-http, auth api_key ${X_API_KEY}, reachable true, uptime30d 0.9369369)

## Packages

_none_

## Tools (9)

- `get_iching_cast`: Generate an authentic I-Ching reading using the traditional three-coin casting method. Each of the six lines is determined by virtually tossing three coins, producing values 6-9 where 6 (old yin) and 9 (old yang) are changing lines. Returns the primary hexagram with full interpretation, the line values showing which lines are changing, and if any lines change, the resulting hexagram that the primary transforms into. Optionally provide a seed for reproducible castings. Perfect for divination apps, oracle features, and decision-making tools.
- `get_iching_hexagrams`: Browse all 64 I-Ching hexagrams from the Book of Changes with their Chinese names, English translations, and trigram compositions. The hexagrams are ordered by the traditional King Wen sequence used in I-Ching divination for 3,000 years. Each hexagram represents a unique life situation combining two trigrams (Heaven, Earth, Thunder, Wind, Water, Fire, Mountain, Lake) into profound wisdom for decision-making and self-understanding.
- `get_iching_hexagrams_lookup`: Find an I-Ching hexagram by its binary line pattern. Provide 6 digits (0 or 1) representing broken (yin) and solid (yang) lines from bottom to top. Use this for custom divination interfaces where users input their own line configurations, or to find hexagrams matching specific trigram combinations. Example: "111111" returns Hexagram 1 (The Creative), "000000" returns Hexagram 2 (The Receptive).
- `get_iching_hexagrams_number`: Retrieve complete I-Ching hexagram details by King Wen sequence number (1-64). Returns the full hexagram with Chinese name, English translation, judgment text, image text, modern interpretations for general situations, love, career, and decision-making, plus all six changing line meanings. Use this to display detailed hexagram information after casting or for educational reference.
- `get_iching_hexagrams_random`: Receive a random I-Ching hexagram with full interpretation. Perfect for daily oracle features, meditation prompts, or exploring the Book of Changes. Returns complete hexagram data including judgment, image, interpretations for love/career/decisions, and all six changing line meanings.
- `get_iching_trigrams`: Retrieve all 8 I-Ching trigrams (bagua), the fundamental building blocks of hexagrams. Each trigram consists of three lines and represents a primal force of nature: Heaven (Qian), Earth (Kun), Thunder (Zhen), Wind (Xun), Water (Kan), Fire (Li), Mountain (Gen), and Lake (Dui). Understanding trigrams is essential for interpreting hexagram meanings, as each hexagram combines an upper and lower trigram.
- `get_iching_trigrams_id`: Retrieve a specific I-Ching trigram by its number (1-8) or English name (Heaven, Earth, Thunder, Wind, Water, Fire, Mountain, Lake). Returns complete trigram information including Chinese name, pinyin, element associations, core attributes, and symbolic meaning. Use this to understand the component trigrams of any hexagram.
- `post_iching_daily`: Receive a daily I-Ching hexagram for guidance and reflection. This endpoint uses seeded randomness to ensure the same seed gets the same hexagram on the same day, perfect for "Hexagram of the Day" features in oracle apps, meditation platforms, and daily wisdom tools. Returns the hexagram with judgment, image, and interpretations for love, career, decisions, and practical advice based on ancient Chinese wisdom from the Book of Changes.
- `post_iching_daily_cast`: Cast a complete daily I-Ching reading using the traditional three-coin method with seeded randomness. Unlike the simple daily hexagram, this provides the full casting experience with line values (6-9), changing line positions, and the resulting hexagram if transformation occurs. Same seed + same date = same casting result. Perfect for I-Ching divination apps requiring authentic oracle experience with daily consistency.